a:hover {
  cursor: pointer;
}
/* banner开始 */
.banner {
  height: 185px;
  background-color: #3a1d5c;
}
.banner img {
  height: 185px;
  width: 960px;
  margin: 0 120px;
}
/* tab */
.tab .bar {
  height: 50px;
  padding: 0 40px;
  margin: 10px auto 0;
  background: #FFFFFF;
  box-shadow: 0px 1px 2px 0px rgba(118, 118, 118, 0.2);
}
.tab .bar li {
  float: left;
  padding: 0 22px;
  margin: 12px 0;
  border-right: 1px solid #bfbfbf;
}
.tab .bar li a {
  height: 50px;
  font-size: 14px;
  color: #262626;
}
.tab .bar li a:hover {
  color: #00a4ff;
  font-weight: 600;
}
.tab .tab_content {
  height: 420px;
  background: #FFFFFF;
  margin-top: 10px;
  overflow: hidden;
}
.tab .tab_content li {
  float: left;
}
.tab .tab_content .content_left {
  width: 180px;
  height: 100%;
}
.tab .tab_content .content_left h2 {
  width: 100%;
  color: #BA7CE1;
  text-align: center;
  padding-top: 80px;
}
.tab .tab_content .content_left img {
  width: 140px;
  height: 140px;
  margin: 0 20px;
  border: 1px dashed #262626;
}
.tab .tab_content .content_img {
  width: 60px;
  height: 100%;
  position: relative;
  margin-left: 10px;
}
.tab .tab_content .content_img i {
  position: absolute;
  border: 1px solid #BA7CE1;
}
.tab .tab_content .content_img :nth-child(1),
.tab .tab_content .content_img :nth-child(4) {
  top: 50px;
  height: 10px;
  width: 10px;
  border-width: 5px;
  border-radius: 50%;
  margin-left: 6px;
}
.tab .tab_content .content_img :nth-child(4) {
  top: 350px;
}
.tab .tab_content .content_img :nth-child(2) {
  top: 80px;
  width: 20px;
  height: 20px;
  border-width: 6px;
  border-radius: 50%;
}
.tab .tab_content .content_img :nth-child(3) {
  top: 110px;
  width: 5px;
  height: 220px;
  background-color: #BA7CE1;
  margin-left: 8px;
}
.tab .tab_content .content_mid {
  height: 287px;
  width: 340px;
  margin-top: 55px;
}
.tab .tab_content .content_mid a {
  font-size: 20px;
  font-weight: 400;
}
.tab .tab_content .content_mid .introduce {
  color: #666666;
  font-size: 14px;
  line-height: 26px;
}
.tab .tab_content .content_mid .price {
  margin-top: 16px;
  font-size: 14px;
}
.tab .tab_content .content_mid .price i {
  font-style: normal;
  color: #FF2D2D;
}
.tab .tab_content .content_mid .price span {
  padding-left: 40px;
  text-decoration: line-through;
  color: #999999;
}
.tab .tab_content .content_mid .price span i {
  color: #FF7C2D;
}
.tab .tab_content .course {
  position: relative;
  margin-left: 48px;
  height: 310px;
  width: 550px;
  margin-top: 55px;
}
.tab .tab_content .course .slide {
  position: absolute;
  left: 0;
  bottom: -40px;
  width: 500px;
  height: 10px;
}
.tab .tab_content .course ul {
  width: 1340px;
}
.tab .tab_content .course ul li {
  float: left;
  width: 228px;
  height: 270px;
  margin-right: 40px;
  box-shadow: 0px 2px 5px 0px rgba(118, 118, 118, 0.5);
}
.tab .tab_content .course ul li img {
  width: 228px;
}
.tab .tab_content .course ul li a {
  display: block;
  height: 20px;
  font-weight: 500;
  font-size: 14px;
  margin: 20px 30px;
}
.tab .tab_content .course ul li p {
  height: 20px;
  font-size: 12px;
  color: #FF7C2D;
  padding: 20px 30px;
}
.tab .tab_content .course ul li i,
.tab .tab_content .course ul li span {
  color: #606060;
  padding: 0 6px;
}
.tab .tab_content .course ul li .course_item {
  position: relative;
}
.tab .tab_content .course ul li .triangle {
  position: absolute;
  top: 120px;
  left: 242px;
  width: 0;
  height: 0;
  border: 10px solid transparent;
  border-left-color: #BA7CE1;
}
.tab .tab_content .course ul li .new {
  position: absolute;
  top: 4px;
  right: -4px;
  width: 40px;
  height: 20px;
}
.tab .middle_rank .content_left h2 {
  color: #B249A5;
}
.tab .middle_rank .content_img i {
  border-color: #B249A5;
}
.tab .middle_rank .course .course_item .triangle {
  border-left-color: #B249A5;
}
.tab .high_rank .content_left h2 {
  color: #8F4BB8;
}
.tab .high_rank .content_img i {
  border-color: #8F4BB8;
}
.tab .high_rank .course .course_item .triangle {
  border-left-color: #8F4BB8;
}
